Random git tip for small devices:
git config core.bigFileThreshold 50m
By default git's "unpack" logic is quite memory intensive and if you need to "git pull" a large repo on something like an rpi zero you will probably end up OOMing. Set the threshold for "big files" to something reasonable (like 50 megs) and instead of reading the entire file into RAM and then writing it, it does a streaming copy and has a tiny in-memory I/O buffer instead. Yay.
(optionally specify git config --global to apply to all repos)